A novel warning and identification system for use on recreational vehicles of various types, such as snowmobiles or ATVs, is disclosed as comprising a housing with a display that projects a digital number that is mounted and oriented to provide oncoming riders with information concerning the number of participants in the user's group. The digital display may be set by the user using inputs that allow the entry of the desired number. In addition, the warning and identification system of the present invention includes a beacon for transmitting a select radio signal from the recreational vehicle and which can be recognized by an oncoming rider using a corresponding warning and identification system. Signal differentiation is generated by the unit and like-kind signals are filtered out to avoid confusion amongst the users within a group of riders.